Michigan International Speedway boasts a proud 39-year history of hosting America's best racing action on its 1,400-plus acres in the scenic Irish Hills. With 18 degree banking and 73-foot wide sweeping turns, Michigan International Speedway provides drivers with three and four grooves to run around the two-mile speedway hosts NASCAR Nextel Cup Series, CART, IROC, ARCA & NASCAR Busch Grand National Series.